ath9k: fix a null pointer deref issue

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24312 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-12-07 18:22:43 +00:00 · 2010-12-07 18:22:43 +00:00 · 5e704e5af6
parent 75c9c63874
commit 5e704e5af6
1 changed files with 14 additions and 0 deletions
--- a/package/mac80211/patches/320-pending_work.patch
+++ b/package/mac80211/patches/320-pending_work.patch
@ -2137,3 +2137,17 @@
 	}
 
 	/* add interfaces */
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -1745,7 +1745,10 @@ int ath_tx_start(struct ieee80211_hw *hw
+ 	int frmlen = skb->len + FCS_LEN;
+ 	int q;
+ 
+-	txctl->an = (struct ath_node *)sta->drv_priv;
+	/* NOTE:  sta can be NULL according to net/mac80211.h */
+	if (sta)
+		txctl->an = (struct ath_node *)sta->drv_priv;
+
+ 	if (info->control.hw_key)
+ 		frmlen += info->control.hw_key->icv_len;
+